The Dolmen de Soto is considered one of the premier Neolithic passage graves in the Iberian Peninsula. Set within a flat fertile plain and c. 8.5km south-east of the town of Trigueros in Andalucia, this monument was in use some 5000 years ago and was part of a unique pan-Atlantic European cultural revolution that included ornamentation of the internal spaces of many passage grave monuments. The site was discovered in 1923 by Armando de Soto Morillas and subsequently excavated over three consecutive seasons by the German archaeologist Hugo Obermaier. The passage and chamber are constructed...